Forge *NO MODS* unable to launch. Not a crash? - Java Edition Support - Support - Minecraft Forum

#1 Aug 31, 2014

Eldarado123

Out of the Water
Join Date: 6/30/2012
Posts: 4
Member Details

So, I got this new Alienware 17 laptop and wanted to play some modded minecraft. After installing forge for this first time, I started up my game. I switched to the "Forge" profile and it didn't ask me to put in my account info (but just click the play button without putting in info) like it usually does. It just switched play profile. When I clicked play, it started downloading somethings and right after downloading "guava.jar" or something like that, it just closed itself. I've tried reinstalling minecraft many times and i've also tried different versions of forge and minecraft.

Here's the log where it says it is unable to launch:

 [16:20:20] [main/INFO] [FML/]: Forge Mod Loader version 7.10.18.1180 for Minecraft 1.7.10 loading
[16:20:20] [main/INFO] [FML/]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_20, running on Windows 8.1:amd64:6.3, installed at C:\Program Files\Java\jre1.8.0_20
[16:20:20] [main/DEBUG] [FML/]: Java classpath at launch is C:\Users\Michael\AppData\Roaming\.minecraft\libraries\net\minecraftforge\forge\1.7.10-10.13.0.1180\forge-1.7.10-10.13.0.1180.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\net\minecraft\launchwrapper\1.9\launchwrapper-1.9.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-all\4.1\asm-all-4.1.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\com\typesafe\akka\akka-actor_2.11\2.3.3\akka-actor_2.11-2.3.3.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\com\typesafe\config\1.2.1\config-1.2.1.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-actors-migration_2.11\1.1.0\scala-actors-migration_2.11-1.1.0.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-compiler\2.11.1\scala-compiler-2.11.1.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\org\scala-lang\plugins\scala-continuations-library_2.11\1.0.2\scala-continuations-library_2.11-1.0.2.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\org\scala-lang\plugins\scala-continuations-plugin_2.11.1\1.0.2\scala-continuations-plugin_2.11.1-1.0.2.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-library\2.11.1\scala-library-2.11.1.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-parser-combinators_2.11\1.0.1\scala-parser-combinators_2.11-1.0.1.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-reflect\2.11.1\scala-reflect-2.11.1.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-swing_2.11\1.0.1\scala-swing_2.11-1.0.1.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-xml_2.11\1.0.2\scala-xml_2.11-1.0.2.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\lzma\lzma\0.0.1\lzma-0.0.1.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\com\mojang\realms\1.3.1\realms-1.3.1.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-compress\1.8.1\commons-compress-1.8.1.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpclient\4.3.3\httpclient-4.3.3.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\commons-logging\commons-logging\1.1.3\commons-logging-1.1.3.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpcore\4.3.2\httpcore-4.3.2.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\16.0\guava-16.0.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.2.1\commons-lang3-3.2.1.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.5.16\authlib-1.5.16.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1\lwjgl-2.9.1.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1\lwjgl_util-2.9.1.jar;C:\Users\Michael\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\5.16\twitch-5.16.jar;C:\Users\Michael\AppData\Roaming\.minecraft\versions\1.7.10-Forge10.13.0.1180\1.7.10-Forge10.13.0.1180.jar
[16:20:20] [main/DEBUG] [FML/]: Java library path at launch is C:\Users\Michael\AppData\Roaming\.minecraft\versions\1.7.10-Forge10.13.0.1180\1.7.10-Forge10.13.0.1180-natives-13945111022934
[16:20:20] [main/DEBUG] [FML/]: Enabling runtime deobfuscation
[16:20:20] [main/DEBUG] [FML/]: Instantiating coremod class FMLCorePlugin
[16:20:20] [main/DEBUG] [FML/]: Added access transformer class cpw.mods.fml.common.asm.transformers.AccessTransformer to enqueued access transformers
[16:20:20] [main/DEBUG] [FML/]: Enqueued coremod FMLCorePlugin
[16:20:20] [main/DEBUG] [FML/]: Instantiating coremod class FMLForgePlugin
[16:20:20] [main/DEBUG] [FML/]: Added access transformer class net.minecraftforge.transformers.ForgeAccessTransformer to enqueued access transformers
[16:20:20] [main/DEBUG] [FML/]: Enqueued coremod FMLForgePlugin
[16:20:20] [main/DEBUG] [FML/]: All fundamental core mods are successfully located
[16:20:20] [main/DEBUG] [FML/]: Discovering coremods
[16:20:20] [main/INFO] [LaunchWrapper/]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[16:20:20] [main/INFO] [LaunchWrapper/]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
[16:20:20] [main/INFO] [LaunchWrapper/]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[16:20:20] [main/ERROR] [LaunchWrapper/]: Unable to launch
java.util.ConcurrentModificationException
 at java.util.ArrayList$Itr.checkForComodification(Unknown Source) ~[?:1.8.0_20]
 at java.util.ArrayList$Itr.remove(Unknown Source) ~[?:1.8.0_20]
 at net.minecraft.launchwrapper.Launch.launch(Launch.java:117) [launchwrapper-1.9.jar:?]
 at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?]

And here's the normal log:

[16:15:11] [main/INFO]: Setting user: Eldarado123
[16:15:11] [main/INFO]: (Session ID is token:ce810fa873334f029e7e3b6dadfea8a8:f179591c682340c9b9473499fb060eaa)
[16:15:12] [Client thread/INFO]: LWJGL Version: 2.9.1
[16:15:14] [Client thread/INFO]: Reloading ResourceManager: Default
[16:15:14] [Client thread/INFO]: Created: 512x256 textures/blocks-atlas
[16:15:15] [Client thread/INFO]: Created: 256x256 textures/items-atlas
[16:15:15] [Sound Library Loader/INFO]: Sound engine started
[16:16:46] [Client thread/INFO]: Stopping!

Last edited by Eldarado123: Aug 31, 2014

#3 Aug 31, 2014

Eldarado123

Out of the Water
Join Date: 6/30/2012
Posts: 4
Member Details

I found a solution myself.

Don't use Java 8.

Use Java 7.

Uninstall Java 8.

Hopefully it helps you too XD

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Forge NO MODS unable to launch. Not a crash?